/Engine/Source/Runtime/Core/Public/Containers/UnrealString.h
Replace all occurrences of SearchText with ReplacementText in this string.
the number of occurrences of SearchText that were replaced.
int32 ReplaceInline ( const TCHAR * SearchText, const TCHAR * ReplacementText, [ESearchCase::Type](API\Runtime\Core\Misc\ESearchCase__Type) SearchCase )